Finding the Fourth Proportional to 108,517.61, 149,845.59 and 81,613.26

Step by Step Solution

1. Step 1: Write the proportion equation
   108,517.61 : 149,845.59 = 81,613.26 : x
2. Step 2: Convert to fraction form
   108,517.61/149,845.59 = 81,613.26/x
3. Step 3: Cross multiply
   108,517.61x = 149,845.59 × 81,613.26
4. Step 4: Simplify right side
   108,517.61x = 12,229,387,096.52
5. Step 5: Solve for x
   x = 12,229,387,096.52/108,517.61
6. Step 6: Final answer
   x = 112,694.96